CN206513559U - Impeller pump detracts arc wearing plate - Google Patents

Abstract

Impeller pump detracts arc wearing plate, including plate body (1), axis hole (2) and fixing hole (3)；There are two axis holes (2) at middle part on plate body (1), both sides symmetrically respectively have central raised between a fixing hole (3), two axis holes (2) of plate body (1) in the middle part of two axis hole (2) lines.Convex shape will be improved in the middle part of the plate body of wearing plate, both sides set two bolts that the raised arc wearing plate is flattened into fixation between plate body is only located at two axis holes at middle part, bolt end is exposed but will not contacted with rotor end-face, the abrasion with rotor end-face is avoided, pump housing suction and performance are lifted by improving sealing property.

Description

Impeller pump detracts arc wearing plate

Technical field

It is wear-resisting that the utility model is related to the wear-resisting plate structure improved technology of rotor pumping unit, especially impeller pump detraction arc Plate.

Background technology

Impeller pump is also known as colloid pump, lobe pump, three blade pump, general-purpose delivery pump etc., and impeller pump belongs to displacement pump.It is by It is converted in the periodicity of the multiple fixed volumes conveying unit in working chamber and reaches the purpose of trandfer fluid.The machine of motor Tool can be converted into the pressure energy of trandfer fluid by pump, the flow of pump be solely dependent upon working chamber volume changing value and its Change frequency in unit interval, and it is unrelated with discharge pressure；Impeller pump is synchronous indeed through a pair in the course of the work The rotor of rotation.A pair of synchromesh gears of the rotor in casing are driven, and rotor is synchronized anti-under the drive of major-minor axle Direction rotates.The volume of pump is set to change, so as to constitute higher vacuum and discharge pressure.It is particularly suitable for sanitation-grade medium With corrosivity, the conveying of high viscosity medium.

A pair of rotors of impeller pump enclosure use shaft coupling overall package, and impeller pump rotates the number of teeth by two synchronous backwards Vacuum and suction are produced at import in rotary course for 2-4 rotor, the thing to be conveyed is sucked from inhalation port Material.But, existing rotor pump operation for a period of time after, it may appear that the phenomenon of the blade outer rim serious wear of rotor.

In the prior art, two rotor shaft couplings are fixed on wearing plate by bearing in impeller pump, wearing plate outer rim with Pump housing shell is fixed, and wearing plate uses surface plate, and the fixing hole for needing to set 10 internal diameter 14mm that makes a circle in its week is, it is necessary to 10 Bolt is fixed, in addition to two bolts at middle part, what remaining bolt outer end was exposed, is easily contacted with rotor end-face, therefore, Have to increase the distance between rotor end-face and wearing plate, therefore, excessive gap causes the self-suction of pump to be deteriorated, and flow subtracts It is small.

Utility model content

The purpose of this utility model is to provide impeller pump detraction arc wearing plate, reduction and the abrasion of rotor end-face, passes through Improve sealing property lifting pump housing suction and performance.

The purpose of this utility model will be realized by following technical measures：Including plate body, axis hole and fixing hole；On plate body There are two axis holes at middle part, during both sides symmetrically respectively have between a fixing hole, two axis holes of plate body in the middle part of two axis hole lines Portion is raised.

Especially, a pair of fixing hole lines of centres are overlapped with the median vertical line of the two axis hole lines of centres, and plate body is in this Heart line position is uniformly raised.

Especially, arc convex in the middle part of plate body.

Especially, angular projection in the middle part of plate body.

Especially, the distance at fixing hole and axis hole center is more than the outer edge radius of rotor blade.

Advantage and effect of the present utility model：Convex shape will be improved in the middle part of the plate body of wearing plate, plate body is only at middle part Both sides set two bolts to flatten the raised arc wearing plate and fixed between two axis holes, bolt end be exposed but It is that will not be contacted with rotor end-face, it is to avoid the abrasion with rotor end-face, pump housing suction and performance is lifted by improving sealing property.

Brief description of the drawings

Fig. 1 is the structural representation of the utility model embodiment 1.

Reference includes：

Plate body 1, axis hole 2, fixing hole 3.

Embodiment

The utility model includes：Plate body 1, axis hole 2 and fixing hole 3.

The utility model is described in further detail with reference to the accompanying drawings and examples.

Embodiment 1：As shown in Figure 1, there are two axis holes 2 at middle part on plate body 1, the both sides pair in the middle part of two lines of axis hole 2 Title respectively has central raised between a fixing hole 3, two axis holes 2 of plate body 1.

In foregoing, the line of centres of a pair of fixing holes 3 is overlapped with the median vertical line of the line of centres of two axis hole 2, and plate body 1 is at this Line of centres position is uniformly raised.

In foregoing, the middle part arc convex of plate body 1.

In foregoing, the angular projection in the middle part of plate body 1.

In foregoing, the distance at fixing hole 3 and the center of axis hole 2 is more than the outer edge radius of rotor blade.

In the present embodiment, the internal diameter 14mm of fixing hole 3, the radius of the central raised radian of plate body 1 is 4800mm.

In the utility model, the plate body 1 of wearing plate is modified to arc, moreover, plate body 1 is only located at two axis holes at middle part Both sides set two bolts to flatten the raised arc wearing plate and fixed between 2, due to the corresponding chamber of middle two bolt end faces Body exactly engages the clearance cavity formed by two rotors, so two bolt end is exposed but will not connect with rotor end-face Touch, therefore, so can be to effectively improve the close of inside cavity without increasing the spacing between rotor end-face and wear-resisting plate surface Sealing property, self-suction and flow without influencing whether the pump housing.

Claims (5)

1. impeller pump detracts arc wearing plate, including plate body (1), axis hole (2) and fixing hole (3)；Characterized in that, plate body (1) There are two axis holes (2) at upper middle part, and symmetrically respectively there are a fixing hole (3), the two of plate body (1) in both sides in the middle part of two axis hole (2) lines It is central raised between individual axis hole (2).

2. impeller pump as claimed in claim 1 detracts arc wearing plate, it is characterised in that a pair of fixing holes (3) center connects Line is overlapped with the median vertical line of two axis holes (2) line of centres, and plate body (1) is uniformly raised at the line of centres position.

3. impeller pump as claimed in claim 1 detracts arc wearing plate, it is characterised in that arc convex in the middle part of plate body (1).

4. impeller pump as claimed in claim 1 detracts arc wearing plate, it is characterised in that angular projection in the middle part of plate body (1).

5. impeller pump as claimed in claim 1 detracts arc wearing plate, it is characterised in that fixing hole (3) and axis hole (2) center Distance be more than rotor blade outer edge radius.